PatrickT

Dr. Patrick T

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16 years, 305 days

MaplePrimes Activity


These are replies submitted by PatrickT

I share your wishes Alex. I too find the 2D parser to be cumbersome. However, I believe that maplesoft have invested a lot into the gimmick and that, like the rest of us mere mortals, they may be prone to the sunk-cost fallacy. An interesting question is how many experienced users is the 2D parser alienating? I for one nearly never use the standard interface to avoid the 2D parser and the long loading time (but then, I don't consider myself an experienced user, just a bit above beginner). If most of the experienced users prefer the 1D parser (as I suspect -- I could be wrong) -- IF -- you've got to ask, what is maplesoft doing?

I share your exact same concerns concerning LaTeX and pstricks -- a smart move would be to integrate pstricks functionalities into Maple. This should happen fast as pstricks is getting better and better -- it even has the ability to plot simple differential equations. I'm using it rather a lot these days.

by the way, you can control other plot options inside the procedure in the same way shown by Joe, e.g.

magplot := DS:-MagnitudePlot(args, 'color=blue', 'numpoints=30',
'style=point','symbol=diamond');
phsplot := DS:-PhasePlot(args, 'color=red', 'thickness=10');

for a list of options, type ?plot,options

Here's a great option I did not know about, thanks Andy for asking and Joe for answering!

The Help doesn't say (as far as I could see) that plots:-dualaxisplot is available only for the standard interface or with a call to plotsetup(maplet), and I wouldn't have guessed without your comment Joe.

Please allow me to ask related questions here.

1. Can the plot be viewed inline under classic?

2. Is it possible to export the output in postscript format? (whether with classic or standard)
 

thanks,

with(plots):
dualaxisplot(plot(sin), plot(cos));
Error, (in plots:-dualaxisplot) dual-axis plots are not available for the current interface or device

I do not understand the question, and your worksheet (13857_Q1.mw) doesn't contain very much at all.

I do not understand the question, and your worksheet (13857_Q1.mw) doesn't contain very much at all.

(simplify@subs)(K=L*`K/L`,K^(p-1)*L^(-p+1)) assuming positive;

                                 (p - 1)
                              K/L

(simplify@subs)(K=L*`K/L`,K^(p-1)*L^(-p+1)) assuming positive;

                                 (p - 1)
                              K/L

building on your construction, in a long and tedious single step:

eval( (simplify@subs)(K=L*''K/L'',K^(p-1)*L^(-p+1)) assuming positive );
                                  (p - 1)
                             (K/L)

building on your construction, in a long and tedious single step:

eval( (simplify@subs)(K=L*''K/L'',K^(p-1)*L^(-p+1)) assuming positive );
                                  (p - 1)
                             (K/L)

A survey would be a good way to answer the question:

What significant enhancement or new feature of Maple would you like to see in Maple 15?

My answer: The area in which I find Maple most wanting, FOR MY PURPOSES AND NOT WISHING TO IMPLICATE ANYONE ELSE IN THIS STATEMENT, is the production of graphs. I would like to be able to produce publishable graphs in both 2D and 3D. For this, I'd like the ability to export on the fly in pdf, ps, jpg, and other common formats (by the way, I'd like the postscript format to be the real one, not some fake annoying format reporting errors of syntax when opened with ghostview/ghostscript). I'd like the ability to format the plot the way I want, in particular the ability to control thickness, color, styles, etc. for just about everything including axes, tickmarks, arrows, annotations. It would be nice to be able to generate quality, animated gifs on the fly. I'd like these functions to be available for the dfieldplot and phaseportrait and the likes. AND I'd like to be able to add LaTeX symbols into my plots in much the same way that pstricks works.

Now if I had my way, I'd like this to be available in Classic, as I don't use standard at all.

I'm sad to report that I now produce nearly all my plots with pstricks and pstricks-add --  Maple plots just not good enough as of version 13. And this is a great burden as it means that I typically do calculations in Maple and produce some nasty plot there and then redraw the graph from scratch with pstricks. If I change parameter values in Maple I've got to change them manually with pstricks and reproduce the graph again... it is driving me nuts.

P.S. I don't foresee a demand for hand recognition functionalities over the next 10 years. I wouldn't use it -- I don't even have pens at home.

I was typing as you posted this, so let me copy-paste my message onto your blog.

very interesting report.

I think a survey would be a good way to answer the question:

What significant enhancement or new feature of Maple would you like to see in Maple 15?

My answer: The area in which I find Maple most wanting, FOR MY PURPOSES AND NOT WISHING TO IMPLICATE ANYONE ELSE IN THIS STATEMENT, is the production of graphs. I would like to be able to produce publishable graphs in both 2D and 3D. For this, I'd like the ability to export on the fly in pdf, ps, jpg, and other common formats (by the way, I'd like the postscript format to be the real one, not some fake annoying format reporting errors of syntax when opened with ghostview/ghostscript). I'd like the ability to format the plot the way I want, in particular the ability to control thickness, color, styles, etc. for just about everything including axes, tickmarks, arrows, annotations. It would be nice to be able to generate quality, animated gifs on the fly. I'd like these functions to be available for the dfieldplot and phaseportrait and the likes. AND I'd like to be able to add LaTeX symbols into my plots in much the same way that pstricks works.

Now if I had my way, I'd like this to be available in Classic, as I don't use standard at all.

I'm sad to report that I now produce nearly all my plots with pstricks and pstricks-add --  Maple plots just not good enough as of version 13. And this is a great burden as it means that I typically do calculations in Maple and produce some nasty plot there and then redraw the graph from scratch with pstricks. If I change parameter values in Maple I've got to change them manually with pstricks and reproduce the graph again... it is driving me nuts.

P.S. I don't foresee a demand for hand recognition functionalities over the next 10 years. I wouldn't use it -- I don't even have pens at home.

I got something a tiny bit different from your output Robert, for some reason (Maple 13.01/Classic):

combine(K^p/L^p) assuming positive;

                                p  (-p)
                               K  L

combine(K^p/L^p, radical) assuming positive;

                                   p
                                  K
                                 ----
                                   p
                                  L


I got something a tiny bit different from your output Robert, for some reason (Maple 13.01/Classic):

combine(K^p/L^p) assuming positive;

                                p  (-p)
                               K  L

combine(K^p/L^p, radical) assuming positive;

                                   p
                                  K
                                 ----
                                   p
                                  L


If I'm looking at the right thing, I think you want to use implicitplot,

implicitplot(expr, w=-1..1, kk=-1..1);

but it looks like you've got a bb in there too (if I'm looking at the right expression), in which case you may either fix bb,

bb:=1;

or use implicitplot3d,

implicitplot3d(expr, w=-1..1, kk=-1..1,bb=-1..1);

and you need this at the top of your worksheet:

with(plots);

or:

with(plots,implicitplot);

or you can use, instead:

plots:-implicitplot3d(expr, w=-1..1, kk=-1..1,bb=-1..1);
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